Albert Barnes Commentary Deuteronomy 20:5

"And the officers shall speak unto the people, saying, What man is there that hath built a new house, and hath not dedicated it? let him go and return to his house, lest he die in the battle, and another man dedicate it." — Deuteronomy 20:5 (ASV)

The officers dedicated it - See Exodus 5:6 note.

Compare the marginal references. The expression is appropriate, because various ceremonies of a religious kind were customary among the Jews on taking possession of a new house. The immunity conferred in this verse lasted, like that in Deuteronomy 20:7 , for one year.